UPSSSC PET 2023 (28 Oct Shift 1)
In the question below two statements followed by two conclusions numbered I and II are given. You have to take the given two statements to be true even if they seem to be at variance from commonly known facts. Read the conclusions and then decide which of the given conclusions logically follows from the two given statements, disregarding commonly known facts.Statements:All poles are guns. Some boats are not poles.ConclusionsI.All guns are boats.II.Some boats are not guns.
Answer (Detailed Solution Below)View answer ▾Hide ▴
Answer: Option D — If neither I nor II follows.
Detailed Solution
All poles are guns, but nothing links guns as a whole with boats, so ‘All guns are boats’ does not follow.
The boats that are not poles may still all be guns, so ‘Some boats are not guns’ is not certain either; neither follows (the source key B is wrong).
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Syllogism — UPSSSC PET Preparation
This question tests your understanding of Syllogism, a key topic in the UPSSSC PET Logical Reasoning section. The detailed solution above uses a step-by-step approach to show the reasoning, and where available, a shortcut that helps you solve similar questions in under 90 seconds during the actual exam.
Syllogism questions give two or more statements and ask which conclusions follow from them. You must accept the statements as true, even if they contradict real-world facts. This topic covers statements with "All", "Some" and "No", "only a few" type statements, and possibility conclusions such as "Some A can be B". The Venn diagram method is the most reliable approach. Draw every possible arrangement that satisfies the statements, and accept a conclusion only if it holds in every diagram. A possibility conclusion follows if it is true in at least one valid diagram. Knowing the standard rules, such as "All + All = All" and "Some + All = Some", speeds things up once you are confident with the diagrams. Practise the syllogism questions below. Each solution includes a Venn diagram.